如何在 Java 中为 JButton 应用不同的边框?
awtjavaobject oriented programmingprogrammingswing
JButton 是 AbstractButton 类 的子类，可用于在 Java Swing 应用程序中添加独立于平台的按钮。当用户单击按钮时，JButon 可以生成 ActionListener 接口，当用户可以通过鼠标 执行某些操作时，它还可以生成 MouseListener，当用户可以通过键盘执行某些操作时，它还可以生成 KeyListener。
我们可以使用 JComponent类的 setBorder() 方法为 JButton 设置不同的边框，如 LineBorder、BevelBorder、EtchcedBorder、EmptyBorder、TitledBorder 等。
语法
public void setBorder(Border border)
示例
import javax.swing.*;
import java.awt.*;
public class JButtonBordersTest extends JFrame {
private JButton button[];
private JPanel panel;
public JButtonBordersTest() {
setTitle("JButton Borders");
panel = new JPanel();
panel.setLayout(new GridLayout(7, 1));
button = new JButton[7];
for(int count = 0; count < button.length; count++) {
button[count] = new JButton("Button "+(count+1));
panel.add(button[count]);
}
button[0].setBorder(BorderFactory.createLineBorder(Color.blue));
button[1].setBorder(BorderFactory.createBevelBorder(0));
button[2].setBorder(BorderFactory.createBevelBorder(1, Color.red, Color.blue));
button[3].setBorder(BorderFactory.createBevelBorder(1, Color.green, Color.orange, Color.red, Color.blue));
button[4].setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
button[5].setBorder(BorderFactory.createEtchedBorder(0));
button[6].setBorder(BorderFactory.createTitledBorder("Titled Border"));
add(panel, BorderLayout.CENTER);
setSize(400, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setVisible(true);
}
public static void main(String[] args) {
new JButtonBordersTest();
}
}
输出
